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Finding the Fourth Proportional to 555,327.70, 832,905.15 and 155,929.30

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Solution

The fourth proportional to 555,327.70, 832,905.15 and 155,929.30 is: 233,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,327.70 : 832,905.15 = 155,929.30 : x
  2. Step 2: Convert to fraction form
    555,327.70/832,905.15 = 155,929.30/x
  3. Step 3: Cross multiply
    555,327.70x = 832,905.15 × 155,929.30
  4. Step 4: Simplify right side
    555,327.70x = 129,874,317,005.90
  5. Step 5: Solve for x
    x = 129,874,317,005.90/555,327.70
  6. Step 6: Final answer
    x = 233,869.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.